280997432

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{4513}}^1$

素因数の和:4743

約数の個数: 32

約数和(自身を含む): 542221680

約数和(自身を除く): 261224248

約数列:

[1, 2, 4, 8, 43, 86, 172, 181, 344, 362, 724, 1448, 4513, 7783, 9026, 15566, 18052, 31132, 36104, 62264, 194059, 388118, 776236, 816853, 1552472, 1633706, 3267412, 6534824, 35124679, 70249358, 140498716, 280997432]

約数ペア:

[(1, 280997432), (2, 140498716), (4, 70249358), (8, 35124679), (43, 6534824), (86, 3267412), (172, 1633706), (181, 1552472), (344, 816853), (362, 776236), (724, 388118), (1448, 194059), (4513, 62264), (7783, 36104), (9026, 31132), (15566, 18052)]